A smart contact lens developed by researchers at Tohoku Univ. in Japan could prevent dry eye syndrome by maintaining a fluid layer between the lens and the eye.
The system depends on electroosmotic flow (EOF), a phenomenon that induces liquid to flow when a voltage is applied to a surface.
The researchers used a charged hydrogel to create their contact lens and proved that they could induce EOF across its surface. This discovery could have potential applications in commercial contact lenses...
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